mirror of
git://git.gnupg.org/gnupg.git
synced 2024-11-04 20:38:50 +01:00
91 lines
2.3 KiB
ArmAsm
91 lines
2.3 KiB
ArmAsm
/* HP-PA __udiv_qrnnd division support, used from longlong.h.
|
|
* This version runs fast on PA 7000 and later.
|
|
*
|
|
* Copyright (C) 1993, 1994, 1998,
|
|
* 2001 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GnuPG is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*
|
|
* Note: This code is heavily based on the GNU MP Library.
|
|
* Actually it's the same code with only minor changes in the
|
|
* way the data is stored; this is to support the abstraction
|
|
* of an optional secure memory allocation which may be used
|
|
* to avoid revealing of sensitive data due to paging etc.
|
|
* The GNU MP Library itself is published under the LGPL;
|
|
* however I decided to publish this code under the plain GPL.
|
|
*/
|
|
|
|
|
|
|
|
/* INPUT PARAMETERS
|
|
* rem_ptr gr26
|
|
* n1 gr25
|
|
* n0 gr24
|
|
* d gr23
|
|
*/
|
|
|
|
.code
|
|
.label L$0000
|
|
.word 0x43f00000
|
|
.word 0x0
|
|
.export __udiv_qrnnd
|
|
.label __udiv_qrnnd
|
|
.proc
|
|
.callinfo frame=64,no_calls
|
|
.entry
|
|
ldo 64(%r30),%r30
|
|
|
|
stws %r25,-16(0,%r30) ; n_hi
|
|
stws %r24,-12(0,%r30) ; n_lo
|
|
ldil L'L$0000,%r19 ; '
|
|
ldo R'L$0000(%r19),%r19 ; '
|
|
fldds -16(0,%r30),%fr5
|
|
stws %r23,-12(0,%r30)
|
|
comib,<= 0,%r25,L$1
|
|
fcnvxf,dbl,dbl %fr5,%fr5
|
|
fldds 0(0,%r19),%fr4
|
|
fadd,dbl %fr4,%fr5,%fr5
|
|
.label L$1
|
|
fcpy,sgl %fr0,%fr6L
|
|
fldws -12(0,%r30),%fr6R
|
|
fcnvxf,dbl,dbl %fr6,%fr4
|
|
|
|
fdiv,dbl %fr5,%fr4,%fr5
|
|
|
|
fcnvfx,dbl,dbl %fr5,%fr4
|
|
fstws %fr4R,-16(%r30)
|
|
xmpyu %fr4R,%fr6R,%fr6
|
|
ldws -16(%r30),%r28
|
|
fstds %fr6,-16(0,%r30)
|
|
ldws -12(0,%r30),%r21
|
|
ldws -16(0,%r30),%r20
|
|
sub %r24,%r21,%r22
|
|
subb %r25,%r20,%r19
|
|
comib,= 0,%r19,L$2
|
|
ldo -64(%r30),%r30
|
|
|
|
add %r22,%r23,%r22
|
|
ldo -1(%r28),%r28
|
|
.label L$2
|
|
bv 0(%r2)
|
|
stws %r22,0(0,%r26)
|
|
|
|
.exit
|
|
.procend
|
|
|
|
|